The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
"In making these selections for publication, one of the chief aims has been to include extracts illustrative of the history of New England, especially of Connecticut, and also of the personal history of Yale graduates."--Pref